Organisers of the 2014 Soccer World Cup conducted the first and only official test of facilities at Sao Paulo's still-incomplete Arena Corinthians stadium on Sunday, 25 days before it will host the opening match between Brazil and Croatia.

Brazil's World Cup preparations have been plagued by delays and unfulfilled promises. The stadiums built or renovated for the World Cup are over budget and several remain incomplete. The Cup begins June 12.

Many new public transport projects promised for the World Cup have not been started and many are unfinished. Anger over the cost and broken promises has contributed to waves of street protests in the last year and cut the popularity of Brazilian President Dilma Rousseff ahead of elections in October.

About 36,694 fans attended the Brazilian football championship match on Sunday at Arena Corinthians, about half the capacity that will be available for the six World Cup matches, including one semi-final game, to be played at the 1.07 billion real (286 million pounds) stadium.

The stadium, more than a year behind schedule, still requires landscaping and access work outside the facility.

At Sunday's game organizers were unable to provide some services, such as metal detectors, promised for the World Cup, according to the World Cup Local Organizing Committee.

Fans did not receive "100 per cent of the services that will be offered during the World Cup nor did they receive the scale and quality of services that will be offered at World Cup competition," it said in a note.